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Drivetrain Mounts and Upgrades

From the factory, engine and transmission mounts are rubber and thus a wear component. Worn out engine or transmission mounts create sloppiness and a disconnect between the driver and your BMW's powerplant. If your vehicle is purpose built for the track, we recommend solid engine and transmission mounts. These have zero deflection, but come at the expense of added NVH (noise, vibration, and harshness). Poly engine and transmission mounts offer a good balance between OEM rubber and solid mounts for those with mixed purpose vehicles, offering great performance and connection with little sacrifice in terms of NVH.

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Street Density Transmission Mount - Sold as Set of 2
2X Entries Into Our F80 M3 Sweepstakes
034Motorsport - Corporate Logo
T#:24079616
Part#: 034-509-4062
In Stock
Sale - Save 10% $ 25.00

This product was last offered at the strikethrough price on
08-17-2026

$ 22.50 USD
Free Shipping
Sale - Save 10%
$ 25.00

This product was last offered at the strikethrough price on
08-17-2026

$ 22.50 USD
Free Shipping
Designed with both comfort and performance in mind, the Street-Density line from 034Motorsport is the perfect choice for the OEM+ enthusiast. These mounts feature high-durometer rubber construction to keep NVH low. However, they do not utilize the same fluid-filled technology as the factory mounts, eliminating all slop to deliver power more efficiently.
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034Motorsport - Corporate Logo
T#:568474
Part#: 034-509-0064KT
In Stock
$ 210.00 USD
Free Shipping
$ 210.00 USD
Free Shipping
Collapsing and worn engine mounts can mean big trouble for BMWs. The stock mounts are filled with fluid that can leak or evaporate over time. That leaves the mount unstable and too flexible to properly support the engine. The side effects of a worn engine mount are: shaking and vibrating engine, driveline twist from engine torque that can break or snap bushings, and broken motor mount arms and bolts. If you're tired of replacing engine mounts you'll be very pleased with these solid rubber versions. Not only are these more reliable than stock fluid-filled mounts, they are slightly stiffer than new stock mounts thanks to a solid rubber construction (no voids in the rubber) but designed for street use so they remain quiet and comfortable. The solid rubber has less deflection than a stock mount, so no wasted engine motion. Less wasted motion gives you more torque to the wheels (it's not spent twisting the engine) and better engine response.
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034 Density Line Upgraded Transmission Mount Set
2X Entries Into Our F80 M3 Sweepstakes
034Motorsport - Corporate Logo
T#:389755
Part#: 034-509-4050-SD
In Stock
$ 66.00 USD
Free Shipping on orders $49 and up
Key Benefits:
  • Manufactured from high-durometer 60 Durometer Rubber
  • Reduces drivetrain slop for enhanced performance
  • Provides crisper shifting and more direct power transfer
  • Minimal increase in noise, vibration, or harshness (NVH)
  • Complete drop-in replacement for factory transmission mounts
  • Ideal for use alongside upgraded engine mounts
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    034Motorsport - Corporate Logo
    T#:389756
    Part#: 034-509-N5X
    In Stock
    $ 330.00 USD
    Free Shipping
    $ 330.00 USD
    Free Shipping

    Collapsing and worn engine mounts can mean big trouble for N52/N54/N55 cars. The stock mounts are filled with fluid that can leak or evaporate over time. That leaves the mount unstable and too flexible to properly support the engine. The side effects of a worn engine mount are: shaking and vibrating engine, driveline twist from engine torque that can break or snap bushings, and broken motor mount arms and bolts. If you're tired of replacing engine mounts you'll be very pleased wtih these solid rubber versions.

    Not only are these more reliable than stock fluid-filled mounts, they are slightly stiffer than new stock mounts thanks to a solid rubber construction (no voids in the rubber) but designed for street use so they remain quiet and comfortable. The solid rubber has less deflection than a stock mount, so no wasted engine and transmission motion. Less wasted motion gives you more torque to the wheels (it's not spent twisting the engine) and better shifts.

    Sold as a set of matching engine and transmission mounts.

    This item fits the following BMWs:
    2008-2013 E82 E88 BMW 128i 135i 1M Coupe
    2006-2011 E90 BMW 325i 325xi 328i 328xi 330i 330xi 335i 335xi - Sedan
    2007-2011 E91 BMW 325i 325xi 328i 328xi - Touring Wagon
    2007-2013 E92 BMW 328i 328xi 335i 335is 335xi - Coupe
    2007-2013 E93 BMW 328i 335i 335is - Convertible
    2009-2016 E89 BMW Z4 sDrive30i Z4 sDrive35i Z4 sDrive35is

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    034Motorsport Density Line Solid Rubber Motor Mount Set - E8X/E9X ...
    2X Entries Into Our F80 M3 Sweepstakes
    [Z4] - For Roadster Models Only
    034Motorsport - Corporate Logo
    T#:388772
    Part#: 034-509-005X
    In Stock
    $ 264.00 USD
    Free Shipping
    $ 264.00 USD
    Free Shipping

    Collapsing and worn engine mounts can mean big trouble for N52/N54/N55 cars. The stock mounts are filled with fluid that can leak or evaporate over time. That leaves the mount unstable and too flexible to properly support the engine. The side effects of a worn engine mount are: shaking and vibrating engine, driveline twist from engine torque that can break or snap bushings, and broken motor mount arms and bolts. If you're tired of replacing engine mounts you'll be very pleased wtih these solid rubber versions.

    Not only are these more reliable than stock fluid-filled mounts, they are slightly stiffer than new stock mounts thanks to a solid rubber construction (no voids in the rubber) but designed for street use so they remain quiet and comfortable. The solid rubber has less deflection than a stock mount, so no wasted enginemotion. Less wasted motion gives you more torque to the wheels (it's not spent twisting the engine) and better engine response.

    This item fits the following BMWs:
    2008-2013 E82 E88 BMW 128i 135i 1M Coupe
    2006-2011 E90 BMW 325i 325xi 328i 328xi 330i 330xi 335i 335xi - Sedan
    2007-2011 E91 BMW 325i 325xi 328i 328xi - Touring Wagon
    2007-2013 E92 BMW 328i 328xi 335i 335is 335xi - Coupe
    2007-2013 E93 BMW 328i 335i 335is - Convertible
    2009-2016 E89 BMW Z4 sDrive30i Z4 sDrive35i Z4 sDrive35is

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    034Motorsport - Corporate Logo
    T#:568476
    Part#: 034-509-3646
    In Stock
    $ 276.00 USD
    Free Shipping
    $ 276.00 USD
    Free Shipping
    Collapsing and worn engine mounts can mean big trouble for BMWs. The stock mounts are filled with fluid that can leak or evaporate over time. That leaves the mount unstable and too flexible to properly support the engine. The side effects of a worn engine mount are: shaking and vibrating engine, driveline twist from engine torque that can break or snap bushings, and broken motor mount arms and bolts. If you're tired of replacing engine mounts you'll be very pleased wtih these solid rubber versions. Not only are these more reliable than stock fluid-filled mounts, they are slightly stiffer than new stock mounts thanks to a solid rubber construction (no voids in the rubber) but designed for street use so they remain quiet and comfortable. The solid rubber has less deflection than a stock mount, so no wasted engine and transmission motion. Less wasted motion gives you more torque to the wheels (it's not spent twisting the engine) and better shifts.
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    Burger Motorsports - Corporate Logo
    T#:637547
    Part#: BMS-DSBB-F
    Back Ordered
    Starting at $ 129.00 USD
    Free Shipping
    Starting at $ 129.00 USD
    Free Shipping
    The BMS differential brace attaches the rear differential to the subframe allowing better launches, less wheel hop, and a more stable feeling rear chassis. Their unique one-piece construction eliminates welding weak points common on similar units. No logos or markings are visible for a stealth OEM appearance.
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    Burger Motorsports - Corporate Logo
    T#:1316770
    Part#: E9XDIFFBRACE-SM
    Back Ordered
    $ 99.00 USD
    Free Shipping
    $ 99.00 USD
    Free Shipping

    BMW E9X 335i BMS Differential Support Bracket Brace - Small Case

    The BMW E9X 335i BMS Differential Support Bracket Brace - Small Case is a high-performance upgrade designed to enhance the stability and durability of the differential mount. Turner Motorsport offers this precision-engineered brace to reduce flex and movement of the differential, ensuring improved power transfer and handling. Ideal for high-performance driving or track use, this brace helps maintain proper alignment and extends the lifespan of your differential components.

    Benefits:

    • Enhances differential stability by reducing flex and movement
    • Improves power transfer and handling performance
    • Precision-engineered for a perfect fit and reliable performance
    • Ideal for high-performance driving and track use
    • Extends the lifespan of differential components
    • Made from high-quality materials for durability and strength
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